TEHRAN (FNA)- A group of Iranian researchers managed to predict the transference model of carbon dioxide through nanoporous membranes in gas stripping process by using mathematical modeling and simulation.

Simulation is a very important step in membrane processes, and a good modeling helps very much the designing of a process.

This research presents a model to simulate the separation of carbon dioxide by using nanoporous membranes. The presented model is two-dimensional, and it is able to predict the behavior of the membrane. The presented model is solved by using appropriate numerical methods and software, and it is able to determine the values of some of its major parameters, including concentration distribution and pressure in the membrane.

“In this research, a good model was presented, which has the advantages of the previous methods while it has lessened their disadvantages. The model was developed for the desirable system with its own conditions. The model was solved in the next stage by using numerical methods, and the results were compared to the results obtained from experimental data to determine the precision of the model,” Dr. A’zam Marjani, one of the researchers in the plan, stated.

The membranes are contact type, and they have nanoporous voids. The transference of carbon dioxide has taken place in the research through the voids of the membrane that are at nanometric scale. The two phases of gas and liquid are contacted in the voids of the membrane in contact membranes, and mass transfer and separation processes take place between the two phases.

Results of the research have been published in details in March 2013 in International Journal of Greenhouse Gas Control, vol. 13, pp. 1-8.

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